Box covering machine



Eufly 23, 19350 H. A. ARMBRUSTER 2,0@,285

' BOX COVERING MACHINE Filed Jan. 50, 1954 7 Sheets-Sheet l jufiy 23, 1935. H. A. ARMBI-QUSTER BOX C OVERING MACHINE Filed Jan. 30, 1934 7 Sheets-Sheet 3 July 23, 1935. H. A. ARMBRUSTER 85 BOX COVERING MACHINE Filed Jan. 30, 1954 7 Sheets-Sheet 4 July 23, 1935. H. A. ARMBRUSTER 2,009,285

BOX COVERING MACHINE Filed Jan. 30, 1934 7 Sheets-Sheet 5 July 23, 1935.

H. A. ARMBRUSTER 2,009,285

BOX COVERING MACHINE Filed Jan. 30, 1934 7 Sheets-Sheet 6 July 2 3, 1935. 1 HA. ARMBiQU STER BOX COVERING MACHINE Filed Jan. 30, 1934 7 Sheets-Sheet '7 Patented July 23, 1935 BOX COVERING MACHINE Henry A. Armbruster, Milwaukee, Wis., assignor,

by mesne assignments, to High Production Machine. Company, 1110., Philadelphia, Pa., a corporation of Pennsylvania Application January 30,

25 Claims.

- My invention relates to box covering machines, and it relates moreparticularly to a machine by means of which a cover sheet or wrapper isapplied to a seteup or stayed box.

For many years there has been in common use, and well known, a type of machine for covering paper, boxes in which the box proper, having previously been formed and stayed, is placed on a two-part form block, and a cover sheet of. the

- proper shape, with an adhesive on one face thereof, is placed on a platen beneath the box on the form block, after which the: form block and platen are, moved downwardly throughthe machine, carrying the box and cover sheet therewith.

As-the box and cover sheet are thus carried down-- wardly, the side and end flaps of the cover sheet. are brought, into engagement with suitable devices and operated on, thereby to cause the various flaps of the cover sheet to be brought into proper relationship with respect to the box, the operations occurring in the following order:

Theside flaps are first brought into position,

againstthe outer surfaces of the side portions of the box. The corner flaps, which constitute extensions of the side flaps, are then brought around against the end portions of the box. The end flaps are then brought into' position against the outer surfaces of the end portions of the box. .The edge-portions of, the flaps are thenbent. over to horizontal positions, then pushe'd downwardly on theinside of the side and'endportions, respectively, of the box, after which pressure is applied to the turned in edge portions.

My invention relates more particularly to improved means for performing the aforesaid operations of the Wrapper applying devices in a machine of this type. The construction-and arrangement of the form blocks and platen, and the mechanismfor initially imparting movement to the wrapper applying devices, may be substan tially similar to those of the machines of this general type at present in common use,

The principalobject of my present invention is to provide, in a machine of the character aforesaid, improved means for applying the flaps of the cover sheet or wrapper to thesides and ends of the box, whereby'the machine will be rendered more positive and certain in its action, a better qualityof work will be performed by the machine,

the speed thereof may be increased, and the parts made more durableand lasting.

,A further object of my invention is toprovide,

1934,, Serial No. 708,962

to the box, which mechanism is so constructed and arrangedthat said devices may be retracted PATENT oFFicE to a greater extent than heretofore, so that the a machine may be readily adapted to be used in connection with boxes having flanges or extending portions, as well as for simpler formsof boxes. 1 v

The nature and characteristic features of my invention will be more readily understood-from the following description, taken in connection with the accompanying drawings forming part hereof, inwhich: r I

Figure 1 is a side elevation ofa box covering machine having incorporated therein devices em-' bodying the main features of my present invention, certain parts being removed and other parts being shown in section to illustrate the construction and 'arrangement'more'clearly;

Fig. 2 is a horizontal plan of the lower portion of the machine, illustratingthe arrangement of the cover applying devices, the platen being removed and the standard for actuating the-same,

upon which it is mounted, being shown in section;

Fig.3 is a fragmentary plan view, illustrating the arrangement of the fingers for turning in the edge portions of the siderand end flaps;

Fig. i is a similar view, illustrating the arrangement of the presser bars for imparting pressure to the turned in portions. of .the side.

and end flaps;

Fig. 5 isa vertical, central section, illustrating one set of devices for operating on the end flaps I of the coversheet, and the mechanism for actuating the same;

Fig. 6 is an elevational View, looking from the central portion of the machine, of the parts shown in Fig. 5, certain parts being brokenaway;

Fig. 7 is a topor plan view of the structure shown in Fig. 5;'

structure shown in Fig. 5;

Fig. 9 is. azfragmentary plan View, partly in section, of a portion of the structure shown. in. Fig. 5, illustrating more particularly certain of the. mechanism foreffecting the turnover of the top edge portions of the end flaps;

Fig. 10' is a'fragmentary plan view, partly-in section, illustrating the means for imparting pres- Fig. 8 is an end elevation of a portion of the.

1 performed.

Fig. 13 is an enlarged sectional view, taken approximately on the line |3l3 of Fig. 10;

Fig. 14 is a sectional view similar to Fig. 5, but illustrating the construction and arrangement of the devices for operating on the side flaps of the cover sheet, and the mechanism for actuating the same.

Fig. 15 is an elevational view, looking from the central portion of the machine, of the parts shown in Fig. 14; r

Fig. 16 is a fragmentary plan view of a portion of the apparatus shown in Figs. 14 and 15, illustrating more particularly the devices for turning in the corner flaps which extend from the ends of the side flaps;

Figs. 17, 18, 19, 20 and 21 are detached enlarged elevational views, partly in section, illus trating the mechanism for actuating the devices which operate on the side flaps of the cover sheet, the parts being respectively shown in the various positions assumed during; successive operations;

, Figs. ,22, 23,24, 25 and 26 are similar views of the mechanism for actuating the devices which operate on the end flaps of the cover sheet, the parts being respectively shown in the various positions assumed during successive operations;

Fig. 27 is an elevational view of the reverse side of one of the cams shown in Figs. 1'? to 2i, inclusive, and certain of the parts associated therewith, illustrating more particularly the manner of operation of the pivoted auxiliary cam member carried by said cam; and

Figs. 28, 29, 30, 31, 32, 33 and 34 are perspective views illustrating the successive operations performed by the machine in applying the cover sheetto the box. 7

Referring to the drawings, 40 is the base frame of the machine, to which upwardly extending columns 4| are secured. Upon the upper ends of the-columns 4! there is mounted a table 42, to which the devices of my present invention, which will be hereinafter more particularly described, are adjustably attached.

' Power may be supplied to the machine in any suitable manner, such for example as by the driving pulley 43. The power istransmitted from the pulley 43 by suitable mechanism (not shown) to the main operating shaft 44 of the machine, which extends vertically therein. Upon theupper end of the shaft 44 there is mounted a cam drum 45, provided with suitable cam slots for operating the form blocks upon which the box is mounted while the cover sheet is being applied thereto, one cam slot 35 being provided for the main form block 48', and another cam slot 41 being provided'forthe auxiliary form block 49.

The movement imparted by the cam slot 46 is transmitted by lever 50, and the movement imparted by the cam slot 41 is transmitted by lever l. The form blocks are somounted as to be vertically reciprocable, and the respective cam slots are so shaped-as to cause the form' blocks to be brought to the proper positions at the desired times while the various operations are being It is not deemed necessary to describe in detail the construction and arrangement of the mechanism for actuating the form blocks, as the same are substantially identical, at least in principle, with those of the machines which are well known and have been in common use for many years.

The usual platen 52 is provided below the form blocks; the same beingsupported on the upper end of a'standard 53. The platen 52, and the standard 53 upon which itis mounted, are vertically movable in the machine, being actuated by suitable mechanism (not shown) which, as in the case of the form blocks, may be the same in principle and construction as that heretofore used in machines of this type. It should be borne in mind that the platen 52 also moves to various positions, in timed relationship with the other moving parts of the machine, while the successive operations are being performed.

The main vertical operating shaft 44 also carries a cam drum 54 having a suitably shaped cam slot 55. The movement imparted by the cam slot 55 is transmitted by lever 55 and link 51 to a sleeve 58 which is vertically movable on a standard 59. The standard 59 is mounted on the base frame 49 of the machine, and may also serve as a means for guiding the standard 53 to which the platen 52 is secured. The sleeve 58 is provided with four horizontally extending arms 5! for actuating the cover applying devices. All of the partshereinbefore described may be substantially similar in construction and principle to those in the machines which have beenin common use for many years, and no claim is made for the same per se, it being understood that the present invention relates more particularly to the devices co-operating with the.

foregoing mechanism and actuated thereby.

The devices for operating upon the end flaps of the cover sheet are shown in detached detail in Figs. 5 to 10, inclusive, of the drawings. In Figs. 22 to 26, inclusive, the mechanism for actuating these devices is shown in enlarged detail,

with the parts thereof in the positions assumed at successive stages in the operation of the machine.

Referring now more particularly to Figs. 5 to 10, inclusive, of the drawings, 62 is a housing in which most of the actuating mechanism for these devices is mounted, thehousing also serving as a means of support for the parts which are mounted externally thereof. The housing 62 is provided with a. horizontal extension 63 having a slot 64 through which a. bolt 55 extends, whereby said horizontal extension may be adjustably 'seone end connected to the cam 14 by means of a pivot pin 16 carried by said cam. The other end of the link 15 is connected by means of a pivot pin 11 to a cam 78 which is journaled on another shaft 19 mounted in the upper part of the housing 62.

A roller 80 bears against the working face of the cam l8. This roller 8|! is carried by the brush and roller carriage 8|. The brush and roller carriage 8| is provided with rearwardly extending rods 82 which are slida-bly mounted in a suitable portion of the housing 52. Springs 83 mounted on the rods 82 serve to impel the brush and roller carriage rearwardly, and thus hold the roller 89 against the working face of the cam 18.

The brush bar 84 is provided with rearwardly extending arms 85 whereby the brush 86 is secured to the carriage 8! by means of bolts 81. The shaft 28 of the pressing roller 89 is mounted at each end in an auxiliary bracket 90, which is provided sleeves IIO for this purpose.

through the sleeves I24. The rear end of each'l.

with a rearwardly extending rod 9I which is slid ably mounted in lugs 92 carried by the carriage 8 I. A spring 93 surrounds each of the rods 9|, these springs serving to hold the pressing roller 89 for} wardly in the carriage, yet providingaresilient means for permitting said roller to be slightly retracted to take care of inequalities in the work] The vertical rod I0, which is provided with rack teeth II whichengagethe pinion I2, is also provided near its upper end with a projecting pm I00, which engages a rotatable member IOI, also journaled on the shaft 13 upon which the pinion I I2 is journaled. This rotatable member IIlI carries a projecting finger I02, which is engaged by the pin I when the rod I0 moves downwardly and thereby rotates the member I 0 I. The memberIOI is also providedwith a recess I03 adjacent the finger I02, to permit said member I0! to be rotated without jamming. The member I0I has a straight surface I04 adjacent the recess I03,

so that as the rod I0 is moved upwardly after the member I0-I has been moved to a certain position, said member may then remain idle.

The member MI is provided with a pivot pin I05, to which one end of a link me is pivotally connected. The other end of said link I06 is pivotallyconnected, by means of a pin I01, to a lug I08 carried by a transversely extending bar I09.

h The ends of the bar I09 are mounted on sleeves H0, which extend rearwardly and are slidably mounted in lugs III extending from the sides of the housing 62. Each of the sleeves H0 is provided with an internal shoulder H2 at its rear 3 end.

providing a shoulder internally of each'sleeve, as

at I I8; A coil spring II9 surrounds each rod I I1, being'interposed between the shoulder I I2 provided on the sleeve I I0, and the shoulder I I8 provided 0n the rod II'I.

Thesp-rings I I 9 are under tension, and serve to hold the-finger folding carriage I I4 in its normal position, with respect to the transverse bar I09, this position being determined by collars I20 mounted on the rear ends of the rods 1. The' collars I20 abut against the rear ends of the By the foregoing arrangement, there will be no danger of breakage in the event that the folding finger II3 encounters an. obstruction when the same is actuated by the rotatable member IOI A roller I2I bears against the working face of the cam I4 which is secured to the pinion -12. The roller I2I is journaled in lugs I22 projecting from the rear side of a transverse bar I23. The end portions of the transverse bar I23 are mounted on the front ends of sleeves I24.

The sleeves I24 are slidably mounted in the lugs II I extending from the sides of the housing 62. Each of these sleeves I24 carries a collar I25, and a spring I26 surrounds said sleeve, being interposed between the collar I25 and one of the lugs I I I, so that the sleeves I24 are impelled rearwardly by the springs I26.

The presser bar carriage I2! is positioned in front of the transverse bar I23, and is provided with rearwardly extending rods I28 extending:

of the rods I28 is threaded,'and upon this threaded portion :there is mounted a'hand nut I29. The.

hand nuts I29 have portions which bear against the rear ends of the sleeves I24, the arrangement being such'a's to provide an adjustment of thepresser bar carriage I'Zlwith respect to the trans-* verse bar I23 which carries the cam roller I2-I The transverse bar' I23, and the presser barcarriage I21, are each provided with alinedre cesses, in which coil springs. I30 are mounted,

these springs I30 serving to imp'elthe presser'bar' carriage I2'I forwardly with respect to the cam roller bar I23, yet permitting the presser bar carriage I2! to be retracted sufficiently against the tension of the springs I30 when the presser bar I3I is brought into operation,'as will be hereinafter more fully set forth.

The working surface of the cam I4 is provided with a dwell portion I32. and an extension I33 An auxiliaryalso having a dwell portion I34. cam member I35 is pivotally moun'tedupon the main cam by means of a pin I36, and a suit able extending pin I 31 is'provi-ded to limit the movement of said auxiliary cam member I35;

The auxiliary cam member I35 is so shaped that a portion thereof, in one position of the same with respect to the main cam member I4, projects beyond the dwell portion I34 of the extension I33 of the cam I4. The arrangement is such-that when the cam 14 moves in one direction, that is to say, when the rod I0 is moved downwardly,

the projecting portion of the auxiliary cam I35i will be swung rearwardly-as the same encounters the roller .I2I, and will thereafter fall by gravity to the extending position, so that upon the "return movement of the rod I0 upwardly, the extending portion of the auxiliary cam I35 will engage the roller I2I and cause the sameto be given an additional forward movement to complete the'pressing'operation, as will be hereinafter more fully set forth. I The presser bar carriage. .-I2I is transversely .re-" cessed to receive the presser bar I3I, which isdetachably secured in the recess 'by means of a clamping bolt I38, this arrangement being pro-' vided so that presserbars of various lengthsmay be substituted one foranother, to accommodate different sizes ofboxes.

The devices for. operating upon the side flaps of thecover sheet are shown in detached detail in Figs. 14, l-and 16 of the drawings. In Figs. 17

to 21, inclusive, the mechanism for actuating said devices is shown in enlarged detail, with the parts thereof. in the positions assumed at successive stages in the operation of the machine. These devices, and the mechanism for actuating the:

same, are substantially the same as thosefor operating upon the end flaps of the cover sheet, hereinbefore described, with the addition of certain mechanism for turning the corner flapsof the end portions of the box.

By reason of thesimilarity of the devices for op-.

erating upon the side flaps of the cover'sheet to those for operating upon the end flaps, the corresponding parts have been indicated by similar reference numerals in the drawings, wi'th- I the addition in each instance, however, of-"the exponentffct. to indicate the similar parts of the devices for-operating cover sheet. 1

It should, however, be understood that the upon'the side flaps of the brushes and rollers for operating upon the side flaps are arranged in horizontal planes above the corresponding planes of the brushes and rollers for operating upon the end flaps, this by reason of the necessity of applying the side flaps and corner flaps to the box before the end flaps are applied thereto. By reason of this diiference in location of the brush and roller carriages and the parts associated therewith, the link l5 connecting the, cam I4 with the cam I8 is made correspondingly longer in the mechanism for operating upon the side flaps than in the mechanism for operating upon the end flaps.

,The mechanism for turning the corner flaps is as follows: A crank member I40 is rotatably mounted on the shaft 19 The crank member I40 is provided with a cut out portion I4I into which the head of the pivot pin Il extends. This cut out portion I4I has two bearing surfaces I42 and I43, adapted to be engaged by the head of the pivot pin 11 These bearing surfaces are suitably spaced whereby the crank member I40 is actuated only near the end of the movement of the cam I8 in either direction.

One end of a link I44 is pivotally connected by means of a pin I45 to the arm of the crank member I40. The other end of the link I44 is connected by a pin I46 to a lug I41 carried by a transverse bar I48, which is provided with rearwardly extending rods I49 slidably mounted in lugs-I50 extending from the sides of the housing 62. I

A bracket member I5I is adjustably mounted on each end of the bar I48, and upon this bracket member a finger carrying device I52 is pivotally mounted. The turning fingers comprise suitable plates I53 having operating ribs I54 along their forward edges, and these plates I53 are secured to the pivoted members I52 by suitable clamping bars I55 and bolts I56. Suitable springs I5I'are mounted upon the pivot pins I58 by means of which the members I52 are pivoted to the bracket I5I, these springs I51 serving to hold the end flap turning fingers I53 in their normaloperative positions, yet permitting the same to be pivotally retracted when necessary to take care of inequalities in the work.

The operation of the machine may now be explained, with particular reference to those portions thereof which constitute my present invention. At the beginning of a cycle of operations, the two-part form block is in the raised position (see Fig. .1), and likewise the platen 52 is in its uppermost position, it being noted that the two-part form block is elevated a sufficient distance above the platen to permit the box to be placed on the block.

' e The box B, suitably stayed, is first placed upon the form block, and the cover sheet C, with adhesive applied to the upper face thereof, is placed on the platen 52 below the form block upon which the box B is mounted as aforesaid.

The mechanism for actuating the various de-' vicesfor operating upon the side and end flaps are in their most retracted positions. The sleeve 58 which carries the horizontally extending arms GI is at this period in its uppermost position.

The first action of the machine is to cause the -J form blocks, with the stayed box B mounted thereon, to descend until the lower face of the box engages the central portion of the cover-sheetO, (see Fig. 29) The platen52 and the form blocks 48 and 49 then continue to descend past the va-,

rious devices for operating uponthe side and end flaps, stopping when necessary to permit the several operations to be performed Meanwhile, thev sleeve 58 is lowered by the lever 56 to bring the parts ofthe mechanism for actuating the cover applying devices to the positions shown in Figs. 18 and 23 of the drawings. 3 1

. It will be noted thatthe rackteeth II a carried by the vertical rods 10* engaging the pinions 12, will cause. the cam members I4 to be-slightly rotated, and by reason of the connection of these cam members l4 with the cam members, 18, by

means of the links 15%, the cams '18? will be.

brought to such positions as to push the rollers a, inwardly, and in this manner the brush. and

roller carriages 8| will be moved forwardly to cause the brushes 86 and rollers 89 which operate upon the side fiaps of the cover, sheet to be brought to the operative positions.

Likewise the vertical rods I0 will be simultaneously lowered, the teeth II thereof causing the pinions I2 to rotatethe cam members and thus bring about therotation of the cam members I8 by =means of the connecting link I5. Hence the carriages 8|, for-carrying the brushes 86 and rollers 89 for operating upon the end fiaps,

will also be brought to the operative positions.

so that their brushes and' rollers may .subsequently engage the end flaps of.- the -cover sheetthrough the cut-.out-portions I4I of the crankmembers I40 until they engage the bearing sur faces I42, so that asthe movement continues, until the parts for actuating the devices for operating upon the side and end flaps of the cover sheet are brought to the positions shown in Figs. 19 and 24 of the drawings, the crank members I40 will be actuated by the extending heads of the pivotpins II While this action takes place, thev box B and.

cover sheet C are-momentarily held at rest, so that the corner flaps C may be turned inwardly, to be applied'to the ends of the box. This is accomplished by'means of the turning fingers I53 which are carried by the bracket members I5I mounted upon the transverse .bar I 43 whichis connected by means of the link I44 to. the arm of the crank member I40.

The box and cover sheet then continue'dow v wardly in their movement, past the brushes 86 and ro1lers80, which cause the end flaps C to be applied to the end portions of the box,-the

box being then brought to its lowermost position in the machine.

The vertical rods I0and lll continue in their downwardmovement until the parts for actuating the cover applying devices'are brought to the positions shown inFigs. 20 and 25 of the drawings,-the vertical rods 10 and I0 being. then in their lowermost positions. .When this occurs, the pins I00 and I00 carried by the upper ends of the rods I0 and 10 engage the projecting fingers I02 and I02 of the rotatable members through the links I06 and "it the carriages l M and l I l which carry the folding fingers I I3 and H3, respectively, are moved inwardly to cause these fingers to push'the upwardly extending portions C of the side flaps and the upwardly extending portions C of the end flaps of the cover sheet to horizontal positions.

Prior to this movement, the auxiliary form block 49 has been raised in the usual manner above the main form-block 48; Afterward, the auxiliary form block is lowered to complete the inturning of the edge portions C and C of the side and end flaps, respectively, of the cover sheet also'inthe usual manner. w

Simultaneously. with the inward movement of the folding fingers H3 and H3 5 the cams M and 14a, against which the rollers Hi and HM,

respectively, bear, push these rollers inwardly,

thereby bringing the presser bars l3! and l3! adjacent the outersurfaceiof the covered box. Itshould here be noted that as the cams l4 and M move to the positions aforesaid, the pivoted auxiliary cam members iii!) and 35 will swing backwardly, so asto pass the rollers HI and I2] As soon as the auxiliary cam members I35 and I35 pass these rollers, they fall by gravity to. the positions'shown in Figs. 20, 21, 25 and 26 of the drawings.

The sleeve 58 isnow given a reverse movemen upwardly, causing the rotatable members H3 land In! to retract the'folding fingers, H3 and H3 respectively, this being done before the auxiliary form block 49 is broughtdown to cause the in-- turning of the edge portions C and C of the side and end flaps, respectively, of the cover sheet. Thereafter the projecting portions of. the auxiliary cam members and 135 engage the rollers 12! and I 2%, as indicated in Figs. 21 and 26 of the drawings, to cause the pressure bars l3l to impart an additional pressure to the upper edge portions of the box, by pressing the same against the auxiliary form block 49, which as before mentioned, has been lowered to a position wherethis can be accomplished.

The vertical rods Ill and 76* then continue to their uppermost positions, Wherebythe various parts are again brought to their initial positions.

After the devices for operating upon the side and. end flaps of the cover sheet are retracted as aforesaid, the form blocks and the. platen are raised to their uppermost positions, as shown in Fig. 1 of the drawings. The .covered box may then be removed from the form. blocks, whereupon the machine is in a condition for a repetition of the operations.

;It will benotedthat by the provision of. the mechanism hereinbefore described, the devices for operating upon the side and end flaps of the coverisheet may beretracted a much :greater distance than has been possible by the mechanism heretofore employed for such purpose, and ,the

advantages of this will be obvious'to thoseskilled in the-art. 7 Furthermore, by this arrangement, ample bearing surfacesof the working parts will be provided, and better coaction of the several parts obtained, principally by reason of the greater extent of movement of the various parts, whichpermits a better shaping of the cams and other parts'of the mechanism; i lclaimz' 1; In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box; the actuating means for each set of said devices comprising a rack, a pinion meshing with said rack, and mechanism connected to said pinion for operating the flap applying devices; and means for actuating said racks comprising a vertically movable member and a plurality of horizontal arms carried thereby, each of said racks being con-- nected to one of said arms.

Z. In a box covering machine having a plurality of sets or devices forapplying the side, corner and end flaps of a cover sheet to a box; the actuating means for each set of said devices comprising a vertically movable rod=,-a rack carried thereby, a pinion meshing with said rack, and mechanism connected to said pinion for operating said fiap applying devices; and means for actuating said rods comprising'a vertically movable member and. a plurality of horizontal arms carried thereby, each of said rods being connected to one of said arms. 3. In a box covering machine-having a'plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a'box andro-r pressing inturned edge portions of saidand for inturning and pressing the edge portions of said flaps; the actuating means for each set of said devices comprising a vertically movable rod, a rack carried thereby, a pinion meshingwith said rack, mechanism connected to saidpinion for operating the flap applying devices and the pressing. device, a rotatable memberjcomiected to the inturningdevice, and a pin connection between the rodand the rotatablemember to actuate said rotatable members v 5. In a box covering machine having ,a plural-.- ity of sets or" devices for applying the-side, corner and-end flaps ofa cover. sheetjto a box and for inturning and pressing the edge portions of said flaps, the actuating meansfor. .each set of said devices comprising avertically movable rod, a

rack carried thereby, .a pinion meshing with said rack, mechanism connected to said. pinion for operating. the flap applying devices and the pressing device, a rotatable member connected to the inturning device,- and, arpincarried by the rod engaging a portion of the rotatable member to actuate the same. i P r .6. In a box. covering nachine 'havingaplurality of sets of devices forapplying th id corner-and end flaps of a cover sheet toa box; each set of said devices including a brushand roller for applying. the side. flaps, a carriage for supporting said brush androller, springs .for: im-

pelling said carriage in'onedirection, a cam for moving said .carriage in the ,otherdirectiom-and .corner and end flaps of a cover" sheet to a' -box, each set of. said devicesincluding a brush' and roller for applymgthe sideflaps, a carriage' for supporting said brush and roller, springs for'im- .pelling said carriage in one direction, a cam for of ets of devices for applying the side, corner and end flaps of a cover sheet to a box; each set of said devices including a brush and roller for applying the side flaps, a carriage for supporting said brush and roller, springs for retracting said carriage, a cam for moving said carriage forwardly to bring the brush and roller to their operative positions, and means for rotating said cam.

9. In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of acover sheet to a box; each set of said devices including a brush and roller for applying the side flaps, a carriage for supporting said brush and roller, springs for retracting said carriage, a cam for moving said carriage forwardly to bring the brush and roller to their operative positions, means for rotating said cam; fingers ior applying the corner flaps, and means for actuating said fingers connected with the cam for actuating the brush and roller carriage.

.10., In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box; eachset of said devices including a brush and roller for applying the side flaps, a carriage for supporting said brush and roller, springs for retracting said carriage, a cam for moving said carriage forwardly to bring the brush and roller to their operative positions, and means for rotating said cam; fingers for applying the corner flaps, and means connected with the cam for actuating the brush and roller carriage for actuating said fingers after said cam has moved the brush and rollercarriage to its forward position.

11. In a box covering machine having a plurality of sets of devices for applying the side, corner and end 'fiaps of a cover sheet to a box; each set of said devices including a brush'and roller for applying the side flaps, a carriage for supporting said brush and roller, springs for retracting said carriage, a cam for moving said carriage forwardly. to bring the brush and roller to their operative positions, and means for rotating said cam; fingers for applying the corner flaps, a movable'support upon which said fingers are mounted, a rotatable member connected to said support for advancing and retracting it, and a lost motion connection between said rotatable member and the cam for actuating the brush and roller carriage whereby said rotatable member will be actuated after saidcam has moved the brushand roller carriage to its forward position. V

12. In a box covering machine having a plurality of sets of devices for applying the side, corner and end fiapsof a cover sheet to abox; each set of said devices including a brush and roller for applying the side flaps, a carriage for supporting said brush and roller, springs for retracting said carriage, a cam for moving said carriage forwardly to bring the brush and roller to their operative positions, and means for rotating said cam; fingers for applying the corner flaps, a movable support upon which said fingers are mounted, a rotatable member connected to said support foradvancing and retracting it, and a pin, carried by-thecam for actuating the brush androller carriage, said -pin extending into a cut-out portion of said rotatable member and adapted toengage surfaces at the ends of said cut out portion thereby to actuate said rotatable member near the end of the movement of said the inturning device comprising a finger, a m'ovable carriage in which said finger is mounted, a rotatable member connected to said finger carriage, a vertically movable rod, and a connection between said rod and said rotatable member for actuating the same; and means for actuating said rods comprising a vertically movable member and a plurality of horizontal arms carried thereby, each of said rods being connected to one of said arms.

14. In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box and for inturning the edge portions of said flaps; the inturning device comprising a finger, a movable carriage in which said finger is mounted, a rotatable member connected to said finger carriage, a vertically movable rod primarily adapted for actuating the other parts of the device, a connection between said rod and said rotatable member for actuating the same, and resilient means interposed in the connection between the rotatable member and the finger carriage.

15. In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box and for inturning the edge portions of said flaps; the inturning device comprising a finger, a movable carriage in which said finger is mounted, a rotatable member connected to said finger carriage, a vertically movable rod primarily adapted for actuating the other parts of the device, and a pin carried by said rodfor actuating said rotatable member.

' 16. In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box and for inturning the edge portions of said fiaps;' the inturning device comprising a finger, a movable carriage in which said finger is mounted, a rotatable member connected to said finger carria'ge, a vertically movable rod primarily adapted for actuating the other parts of the device, a pin carried by said rod for actuating said rotatable member, and resilient means interposed in theconnection between the rotatable member and the finger carriage. j

17. In a box covering machine having a pluralityof sets of devices for applying the side, corner and end flaps of a cover sheet to a box and for pressing the edge portions of said fiapsg' the pressing device including a presser bar, a movable carriagein which said presser bar is mounted, and means for moving said carriage forwardly andbackwardly; and rack and pinion mean for actuating said carriage moving means; and means for actuating the racks of said means comprising a vertically movable member and a plurality of horizontal arms carried thereby, each of said racks being connected to one of said arms.

18. In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box and for pressing the edge portions of said flaps; the pressing device including ,a presser bar, a movable carriage inwhichsaidpresser bar is mount 15' tain of said devices, means mounted on the other ed, springs for retracting said carriage, a cam for moving said carriage forwardly, and an auxiliary cam member pivotally mounted on the cam and adapted upon return movement of the cam to impart additional movement to the presser bar; a pinion secured to the cam, a rack meshing with said pinion, and a vertically movable rod carrying said rack.

19. In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box and for pressing the edge portions of said flaps; the pressing device including a presser bar, a movable carriage in which said presser bar is mounted, springs for retracting said carriage, a cam for moving said carriage forwardly, a pinion secured to said cam, a rack meshing with said pinion, and a vertically movable rod carrying said rack; and means for actuating said rods comprising a vertically movable member and a plurality of horizontal arms carried thereby, each of said rods being connected to one of said arms.

20. In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box and for pressing the edge portions of .said flaps; the pressing device including a presser bar, a movable carriage in which said presser bar is resiliently and adjustably mounted, springs for retracting said carriage, and a cam for moving said carriage forwardly, a pinion secured to said cam, a rack meshing with said pinion, and a vertically movable rod carrying said rack.

21. In a'box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet toa box and for pressing the edge portions of said flaps; the pressing device including a presser bar, a movable carriage in which said 'presser bar is resiliently and adjustably mounted, springs for retracting said carriage, a cam for moving said carriage forwardly, and an auxiliary cam member movably mounted on the cam and adapted upon return movement of the cam to impart additional movement to the presser bar.

22. In a box covering machine having, a plurality of sets of devices for applying the-side,'corner and end flaps of a "cover sheet to a box and for in,- turning'and pressing the edge portions of said flaps; the actuating means for each set of said devices comprising two parallel shafts, means mounted on one of said shafts for operating cershaft for operating others of said devices, means for actuating the means on one shaft, and a link in direct pivotal connection with a member on one shaft and with a member on the other shaft whereby said shafts will be actuated in unison.

23. In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box and for inturning and pressing the edge portions of said flaps, the actuating means foreach set-of said devices 'comprisingtwo horizontally disposed parallel shafts, means mounted on one of said shafts for operating certain of said devices, means mounted on the other shaft for operating others of saiddevices, means for actuating the means on one shaft, and a link in direct pivotal connection with a member on one shaft and with a member on the other shaft whereby said shafts will be actuated in unison.

24. In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box and for inturning and pressing' the edge portions of said flaps, the actuating means for each set of said devices comprising two horizontally disposed parallel shafts, means mounted on one of said shafts for operating certain of said devices, means mounted on the other shaft for operating others of said devices, rack and pinion mechanism connected to the means on one shaft for actuating the same, and a link in direct pivotal connection with a member on one shaft and with a member on the other shaft whereby said shafts will be actuated in unison.

25. In a box covering machine having a plurality of sets of devices for applying the side, corner and end flaps of a cover sheet to a box and for inturning and pressing the edge portions of said flaps, the actuating means for each set of said devices comprising two horizontally disposed parallel shafts, means mounted on one of said a link in direct pivotal connection with a member on one shaft and with a member on the other shaft whereby said shafts will be actuated in unison.

' HENRY A. ARMBRUSTER. 

